28999695 has 16 divisors (see below), whose sum is σ = 46582272. Its totient is φ = 15405600.

The previous prime is 28999693. The next prime is 28999697. The reversal of 28999695 is 59699982.

It is an interprime number because it is at equal distance from previous prime (28999693) and next prime (28999697).

It is not a de Polignac number, because 28999695 - 2¹ = 28999693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28999693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270 + ... + 7620.

It is an arithmetic number, because the mean of its divisors is an integer number (2911392).

Almost surely, 2^28999695 is an apocalyptic number.

28999695 is a deficient number, since it is larger than the sum of its proper divisors (17582577).

28999695 is a wasteful number, since it uses less digits than its factorization.

28999695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7622.

The product of its digits is 3149280, while the sum is 57.

The square root of 28999695 is about 5385.1364885210. The cubic root of 28999695 is about 307.2306054882.

The spelling of 28999695 in words is "twenty-eight million, nine hundred ninety-nine thousand, six hundred ninety-five".